11510561 has 8 divisors (see below), whose sum is σ = 12153600. Its totient is φ = 10871280.

The previous prime is 11510549. The next prime is 11510563. The reversal of 11510561 is 16501511.

11510561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11510561 - 2⁶ = 11510497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11510563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7280 + ... + 8718.

It is an arithmetic number, because the mean of its divisors is an integer number (1519200).

Almost surely, 2^11510561 is an apocalyptic number.

It is an amenable number.

11510561 is a deficient number, since it is larger than the sum of its proper divisors (643039).

11510561 is a wasteful number, since it uses less digits than its factorization.

11510561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 11510561 is about 3392.7217687279. The cubic root of 11510561 is about 225.7869464721.

The spelling of 11510561 in words is "eleven million, five hundred ten thousand, five hundred sixty-one".